单项选择题

A．when
B．which
C．while
D．where
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单项选择题
A．densityB．intensityC．extentD．intention
A．density
B．intensity
C．extent
D．intention
单项选择题
A．A manager.B．A teacher.C．She loses her job now.D．A secretary.
A．A manager.
B．A teacher.
C．She loses her job now.
D．A secretary.
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